Teething & not eating

I haven't posted on here in a long time so I'm sure this has been discussed time after time. But...ds turned 1 yesterday, he's cutting his 1st molar & going through a leap. He won't eat more than 4-5 bites at mealtime. This is worrying me bc he's already on the small side. Any tips tricks advice on getting him to eat the healthiest most nutritious foods please?!? Also what can I do to help him with teething pains? The anterior teeth were easy as pie. This molar is killing me. He's so ill, clingy, won't eat (either from teeth/leap or both). I've never had to do much for teething pains. I have given him tylenol a handful of times. But I'm not going to do that everyday. I'm also not going to use hylands or benzocaine topicals because of the side effects. I know the basics about freezing rings etc. he won't do those. The only peace I can get from him clinging to me & screaming is to give him a paci (which I DISPISE)